CN104897025A - Steam turbine differential expansion and valve position instrument verifying device - Google Patents
Steam turbine differential expansion and valve position instrument verifying device Download PDFInfo
- Publication number
- CN104897025A CN104897025A CN201410076590.6A CN201410076590A CN104897025A CN 104897025 A CN104897025 A CN 104897025A CN 201410076590 A CN201410076590 A CN 201410076590A CN 104897025 A CN104897025 A CN 104897025A
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- jig
- valve position
- steam turbine
- stationary installation
- differential expansion
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Abstract
The invention belongs to the field of nuclear power station instrument error verification and relates to a steam turbine differential expansion and valve position instrument verifying device. The steam turbine differential expansion and valve position instrument verifying device achieves convenient and fast verification operation of differential expansion and valve position instruments, ensures accurate and reliable steam turbine differential expansion and valve position instrument verification, improves maintenance efficiency of steam turbine displacement instruments, and guarantees stable operation of a unit. The steam turbine differential expansion and valve position instrument verifying device comprises a verifying assembly, a control box, a portable computer, a USB data line, a control line, a universal adjusting support, a standby clamp C, and a locking handle C. The verifying assembly is connected with the control box through a control line. The control box is connected with the portable computer through the USB data line. The standby clamp C and the locking handle C are installed on the verifying assembly.
Description
Technical field
The invention belongs to nuclear power plant instrument Watch Error verification field, is a kind of steam turbine differential expansion, valve position instrument calibration device.
Background technology
The general every platform steam turbine of nuclear power station has 6 cover differential dilatomaters, 4 cover governor valve valve position instrument, 4 pieces of low pressure admissions to adjust valve valve position instrument.According to the plan of maintenance program and the importance of instrument, laboratory and field-checking verification are all carried out in each overhaul of steam turbine displacement instrument.
In view of the singularity of the swollen poor instrument shape of nuclear power station and measuring principle, there is no special calibration equipment at present to the complete verification of swollen poor instrument, LVDT linear variable differential sensor in swollen poor instrument can only be verified separately, therefore invent a kind of calibration equipment that can verify the swollen poor instrument of any type and valve position instrument.
Summary of the invention
Technical matters to be solved by this invention is, not enough for prior art, there is provided a kind of verification operation of the displacement instrument such as swollen difference, valve position that makes convenient and swift, guarantee that the verification of steam turbine differential expansion, valve position instrument accurately, reliably, improve steam turbine displacement instrument maintenance efficiency, ensure steam turbine differential expansion, the valve position instrument calibration device of stable operation of unit.
The technical solution adopted in the present invention is:
A kind of steam turbine differential expansion, valve position instrument calibration device, comprise verification assembly, control enclosure, portable computer, USB data line, operation circuit, universal adjustment support, jig C for subsequent use and set lever C, wherein verify assembly by operation circuit be connected, control enclosure is connected with portable computer by USB data line; Described jig C for subsequent use and set lever C is arranged on verification assembly.
Described verification assembly comprises Driving Stepping Motor, pedestal, guide rail, leading screw, mobile holder mounting disc, set lever A, jig A, mobile holder, jig B, set lever B, stationary installation A, stationary installation B, accessory mounting hole, universal adjustment support, digimatic micrometer and the special checking bracket of swollen difference, wherein pedestal is the panel seat of two pieces of crosses, transverse plate one end of pedestal is provided with stationary installation A, the other end is provided with stationary installation B, pair of guide rails and leading screw are fixed between stationary installation A and stationary installation B, wherein leading screw is located between pair of guide rails, leading screw is provided with mobile holder mounting disc, mobile holder mounting disc is provided with the digital display part of mobile holder and digimatic micrometer, the transverse plate lower end of described pedestal is provided with the milscale part of digimatic micrometer, described stationary installation A is provided with Driving Stepping Motor, stationary installation B is provided with a pair jig B and a pair set lever B, accessory mounting hole is provided with between a pair jig B, universal adjustment support is installed, the special checking bracket of described swollen difference is arranged on the lower end of the longitudinal plate of pedestal, and described jig A is arranged on the longitudinal plate upper end of pedestal, and set lever A is located at jig A upper end.
Jig C described for subsequent use and set lever C is arranged in the mobile holder mounting disc in verification assembly.
The invention has the beneficial effects as follows:
1. solve the problem of the stroke class instrument check such as all kinds and the swollen difference of various range, valve position, the research and development of this calibration equipment, solve that former swollen poor instrument can not completely verify, the unwarrantable problem of checking precision;
2., because calibration equipment has automatic drive pattern, therefore instrument check efficiency is improved;
3. the present invention is by Function Extension, enables this calibration equipment verify the stroke class instrument such as all kinds and the swollen difference of range, valve position, saves the expense of buying and examining and determine needed for multiple calibration equipment;
4. the raising of checking precision, is more conducive to staff and understands and grasp the long-term characteristic variations trend of instrument.
Accompanying drawing explanation
Fig. 1 is steam turbine differential expansion, valve position instrument calibration device structural representation.
In figure: 1-Driving Stepping Motor; 2-operation circuit; 3-pedestal; 4-guide rail; 5-leading screw; The mounting disc of 6-mobile holder; 7-set lever A; 8-jig A; 9-mobile holder; 10-jig B; 11-set lever B; 12-stationary installation A; 13-stationary installation B; 14-instrument signal gathers port; 15-control enclosure; 16-USB data line; 17-accessory mounting hole; 18-universal adjustment support 19-jig C for subsequent use; 20-set lever C; 21-portable computer; 22-digimatic micrometer; 23-the is swollen special checking bracket of difference.
Embodiment
Below in conjunction with drawings and Examples, one provided by the invention is introduced:
A kind of steam turbine differential expansion, valve position instrument calibration device, comprise verification assembly 24, control enclosure 15, portable computer 21, USB data line 16, operation circuit 2, universal adjustment support 18, jig C19 for subsequent use and set lever C20, wherein verify assembly 24 to pass through operation circuit 2 and be connected, control enclosure 15 is connected with portable computer 21 by USB data line; Described jig C19 for subsequent use and set lever C20 is arranged on verification assembly 24.
Described verification assembly 24 comprises the special checking bracket 23 of Driving Stepping Motor 1, pedestal 3, guide rail 4, leading screw 5, mobile holder mounting disc 6, set lever A7, jig A8, mobile holder 9, jig B10, set lever B11, stationary installation A12, stationary installation B13, accessory mounting hole 17, universal adjustment support 18, digimatic micrometer 22 and swollen difference, wherein pedestal 3 is the panel seat of two pieces of crosses, transverse plate one end of pedestal 3 is provided with stationary installation A12, the other end is provided with stationary installation B13, pair of guide rails 4 and leading screw 5 are fixed between stationary installation A12 and stationary installation B13, wherein leading screw 5 is located between pair of guide rails 4, leading screw 5 is provided with mobile holder mounting disc 6, mobile holder mounting disc 6 is provided with the digital display part of mobile holder 9 and digimatic micrometer 22, the transverse plate lower end of described pedestal 3 is provided with the milscale part of digimatic micrometer 22, described stationary installation A12 is provided with Driving Stepping Motor 1, stationary installation B13 is provided with a pair jig B10 and a pair set lever B11, accessory mounting hole 17 is provided with between a pair jig B10, universal adjustment support 18 is installed, the special checking bracket of described swollen difference 23 is arranged on the lower end of the longitudinal plate of pedestal 3, and described jig A8 is arranged on the longitudinal plate upper end of pedestal 3, and set lever A7 is located at jig A8 upper end.
Jig C19 described for subsequent use and set lever C20 is arranged in the mobile holder mounting disc 6 in verification assembly 24.
Leading screw in stepper motor drive displacement platform is clockwise or rotate counterclockwise.Operation circuit 2 provides 24V power supply for drive motor, and controls it and turn to and rotating speed.Mobile holder mounting disc can only along the steadily movement of horizontal degree of freedom for measurement mechanism provides rigid support guide rail 4 to ensure for pedestal 3.Rotation amount is converted into displacement and drives mobile holder mounting disc to move horizontally by leading screw 5.The mobile holder of mobile holder mounting disc 6 installation and checking different instrument.Set lever A7 is fastening by school instrument.Jig A8 installs by school instrument.Mobile holder 9; Jig B10 installs by school instrument; Set lever B is fastening by school instrument; Start button: start calibration equipment; Stop button stops calibration equipment.Instrument signal gathers port acquisition instrument signal.Control enclosure calibration equipment controls and converter.The data that USB data line realizes computer and control enclosure are transmitted.Accessory mounting hole installs universal adjustment support.Universal adjustment support installing clock gauge, uses front verifying attachment precision.Jig C for subsequent use installs by school instrument.Set lever C is fastening by school instrument.The monitoring of portable computer checking procedure, control and record.Digimatic micrometer: display mobile holder mounting disc position, is accurate to 0.01mm.The special checking bracket of swollen difference is used for verifying the swollen poor instrument of Novel steam turbine specially.
The circuit of calibrated meter and measurement mechanism is connected, special software input is opened by the information of school instrument (range, verification are counted) by portable computer, then start verification, calibration equipment can verify the formation such as swollen difference, the valve position class instrument of all ranges within 0 ~ 300mm in power plant by automatic or manual.
Claims (3)
1. a steam turbine differential expansion, valve position instrument calibration device, it is characterized in that: comprise verification assembly (24), control enclosure (15), portable computer (21), USB data line (16), operation circuit (2), universal adjustment support (18), jig C(19 for subsequent use) and set lever C(20), wherein verify assembly (24) by operation circuit (2) be connected, control enclosure (15) is connected with portable computer (21) by USB data line; Described jig C(19 for subsequent use) and set lever C(20) be arranged in verification assembly (24).
2. a kind of steam turbine differential expansion according to claim 1, valve position instrument calibration device, is characterized in that: described verification assembly (24) comprises Driving Stepping Motor (1), pedestal (3), guide rail (4), leading screw (5), mobile holder mounting disc (6), set lever A(7), jig A(8), mobile holder (9), jig B(10), set lever B(11), stationary installation A(12), stationary installation B(13), accessory mounting hole (17), universal adjustment support (18), digimatic micrometer (22) and the special checking bracket of swollen difference (23), wherein pedestal (3) is the panel seat of two pieces of crosses, transverse plate one end of pedestal (3) is provided with stationary installation A(12), the other end is provided with stationary installation B(13), pair of guide rails (4) and leading screw (5) are fixed on stationary installation A(12) and stationary installation B(13) between, wherein leading screw (5) is located between pair of guide rails (4), leading screw (5) is provided with mobile holder mounting disc (6), mobile holder mounting disc (6) is provided with the digital display part of mobile holder (9) and digimatic micrometer (22), the transverse plate lower end of described pedestal (3) is provided with the milscale part of digimatic micrometer (22), described stationary installation A(12) be provided with Driving Stepping Motor (1), stationary installation B(13) be provided with a pair jig B(10) and a pair set lever B(11), a pair jig B(10) between be provided with accessory mounting hole (17), universal adjustment support (18) is installed, the special checking bracket of described swollen difference (23) is arranged on the lower end of pedestal (3) longitudinal plate, described jig A(8) be arranged on the longitudinal plate upper end of pedestal (3), set lever A(7) be located at jig A(8) upper end.
3. a kind of steam turbine differential expansion according to claim 1 and 2, valve position instrument calibration device, is characterized in that: jig C(19 described for subsequent use) and set lever C(20) be arranged in verification assembly (24) mobile holder mounting disc (6) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076590.6A CN104897025B (en) | 2014-03-04 | 2014-03-04 | A kind of steam turbine differential expansion, valve position instrument calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410076590.6A CN104897025B (en) | 2014-03-04 | 2014-03-04 | A kind of steam turbine differential expansion, valve position instrument calibration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104897025A true CN104897025A (en) | 2015-09-09 |
| CN104897025B CN104897025B (en) | 2019-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410076590.6A Active CN104897025B (en) | 2014-03-04 | 2014-03-04 | A kind of steam turbine differential expansion, valve position instrument calibration device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656985A (en) * | 2019-09-16 | 2020-01-07 | 河北西柏坡发电有限责任公司 | Steam turbine probe positioning device and expansion difference signal simulation method |
Citations (5)
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|---|---|---|---|---|
| CN201331430Y (en) * | 2008-12-23 | 2009-10-21 | 上海发电设备成套设计研究院 | Intelligent checking meter of monitoring and protecting instrument of steam turbine |
| CN201514229U (en) * | 2009-09-03 | 2010-06-23 | 中广核工程有限公司 | Vortex flow sensor check table |
| KR20100006851U (en) * | 2008-12-26 | 2010-07-06 | 한국중부발전(주) | Testing apparatus for turbine shaft expansion sensor |
| US20130094940A1 (en) * | 2011-10-12 | 2013-04-18 | General Electric Company | Inner-to-outer shell differential expansion measurement |
| CN203731987U (en) * | 2014-03-04 | 2014-07-23 | 江苏核电有限公司 | Steam turbine differential expansion and valve location instrument calibration device |
-
2014
- 2014-03-04 CN CN201410076590.6A patent/CN104897025B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201331430Y (en) * | 2008-12-23 | 2009-10-21 | 上海发电设备成套设计研究院 | Intelligent checking meter of monitoring and protecting instrument of steam turbine |
| KR20100006851U (en) * | 2008-12-26 | 2010-07-06 | 한국중부발전(주) | Testing apparatus for turbine shaft expansion sensor |
| CN201514229U (en) * | 2009-09-03 | 2010-06-23 | 中广核工程有限公司 | Vortex flow sensor check table |
| US20130094940A1 (en) * | 2011-10-12 | 2013-04-18 | General Electric Company | Inner-to-outer shell differential expansion measurement |
| CN203731987U (en) * | 2014-03-04 | 2014-07-23 | 江苏核电有限公司 | Steam turbine differential expansion and valve location instrument calibration device |
Non-Patent Citations (1)
| Title |
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| 陈滨: "引进汽轮机监视保护装置的应用与改进", 《电站系统工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656985A (en) * | 2019-09-16 | 2020-01-07 | 河北西柏坡发电有限责任公司 | Steam turbine probe positioning device and expansion difference signal simulation method |
| CN110656985B (en) * | 2019-09-16 | 2021-08-03 | 河北西柏坡发电有限责任公司 | Steam turbine probe positioning device and expansion difference signal simulation method |
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| Publication number | Publication date |
|---|---|
| CN104897025B (en) | 2019-05-17 |
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